Anal plug



FIG. 1 is a perspective view of an anal plug showing our design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a top view thereof.

Portions of the anal plug shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for an anal plug, as shown and described. 